Police investigate at Lu's home on 55th St. in Sunset Park, Brooklyn, after the gory attack on Thursday. (Todd Maisel/New York Daily News)

The hubby from hell tried to convince the driver of a Canada-bound bus to let him stow away in his luggage compartment on Friday. The driver refused and contacted police, according Crime Stoppers Buffalo.

Yang, who already has a young child with Lu, is at Bellevue Hospital, where doctors were able to reattach her arm, police said.